<template>
  <div>
    <el-container>
      <el-header>
        <h1 class="mlogo">lsb</h1>
      </el-header>

      <el-main>
        <el-form :model="ruleForm" :rules="rules" ref="ruleForm" label-width="100px" class="demo-ruleForm">
          <el-form-item label="用户名" prop="username">
            <el-input v-model="ruleForm.username"></el-input>
          </el-form-item>
          <el-form-item label="密码" prop="password">
            <el-input type="password" v-model="ruleForm.password"></el-input>
          </el-form-item>

          <el-form-item>
            <el-button type="primary" @click="submitForm('ruleForm')">登录</el-button>
            <el-button @click="resetForm('ruleForm')">重置</el-button>
          </el-form-item>
        </el-form>
      </el-main>
    </el-container>
  </div>

</template>

<script>
    export default {
      name: "Login",
      data() {
        return {
          ruleForm: {
            username: 'markerhub',
            password: '111111'
          },
          rules: {
            username: [
              { required: true, message: '请输入用户名', trigger: 'blur' },
              { min: 3, max: 15, message: '长度在 3 到 15 个字符', trigger: 'blur' }
            ],
            password: [
              { required: true, message: '请输入密码', trigger: 'change' }
            ]
          }
        };
      },
      methods: {
        submitForm(formName) {
          this.$refs[formName].validate((valid) => {
            if (valid) {
              //alert('submit!');
              this.$axios.post("/login", this.ruleForm).then(result => {
                /*console.log(result.headers);*/
                console.log(result);

                const jwt = result.headers['authorization'];
                const userInfo = result.data.data;

                //将数据共享到store中
                //此处不需要用一个变量在axios之前执行“_this = this”是因为我们回调函数用了"=>"符号，专门解决请求前和请求后this不一致问题
                this.$store.commit("SET_TOKEN", jwt);
                this.$store.commit("SET_USERINFO", userInfo);

                //尝试获取共享容器中的userInfo
                //console.log(this.$store.getters.getUser);

                this.$router.push("/blogs");
              })
            } else {
              console.log('error submit!!');
              return false;
            }
          });
        },
        resetForm(formName) {
          this.$refs[formName].resetFields();
        }
      }
    }
</script>

<style scoped>
  .el-header, .el-footer {
    background-color: #B3C0D1;
    color: #333;
    text-align: center;
    line-height: 60px;
  }

  .el-aside {
    background-color: #D3DCE6;
    color: #333;
    text-align: center;
    line-height: 200px;
  }

  .el-main {
    /*background-color: #E9EEF3;*/
    color: #333;
    text-align: center;
    line-height: 160px;
  }

  body > .el-container {
    margin-bottom: 40px;
  }

  .el-container:nth-child(5) .el-aside,
  .el-container:nth-child(6) .el-aside {
    line-height: 260px;
  }

  .el-container:nth-child(7) .el-aside {
    line-height: 320px;
  }

  .mlogo {
    height: 60%;
    margin-top: 0px;
  }

  .demo-ruleForm {
    max-width: 500px;
    margin: 0 auto;
  }
</style>
